define(function(require, exports, module) {
  'use strict';

  /* jshint unused: false */
  /* jshint -W101, -W116, -W109 */

  /*! iScroll v5.1.3
   * (c) 2008-2014 Matteo Spinelli
   * http://cubiq.org/license
   */

  (function(window, document, Math) {
    var rAF = window.requestAnimationFrame ||
        window.webkitRequestAnimationFrame ||
        window.mozRequestAnimationFrame ||
        window.oRequestAnimationFrame ||
        window.msRequestAnimationFrame ||
        function(callback) {
          window.setTimeout(callback, 1000 / 60);
        };

    var utils = (function() {
      var me = {};

      var _elementStyle = document.createElement('div').style;
      var _vendor = (function() {
        var vendors = ['t', 'webkitT', 'MozT', 'msT', 'OT'],
            transform,
            i = 0,
            l = vendors.length;

        for (; i < l; i++) {
          transform = vendors[i] + 'ransform';
          if (transform in _elementStyle) return vendors[i].substr(0, vendors[i].length - 1);
        }

        return false;
      })();

      function _prefixStyle(style) {
        if (_vendor === false) return false;
        if (_vendor === '') return style;
        return _vendor + style.charAt(0).toUpperCase() + style.substr(1);
      }

      me.getTime = Date.now || function getTime() {
        return new Date().getTime();
      };

      me.extend = function(target, obj) {
        for (var i in obj) {
          target[i] = obj[i];
        }
      };

      me.addEvent = function(el, type, fn, capture) {
        el.addEventListener(type, fn, !!capture);
      };

      me.removeEvent = function(el, type, fn, capture) {
        el.removeEventListener(type, fn, !!capture);
      };

      me.prefixPointerEvent = function(pointerEvent) {
        return window.MSPointerEvent ?
            'MSPointer' + pointerEvent.charAt(9).toUpperCase() + pointerEvent.substr(10) :
            pointerEvent;
      };

      me.momentum = function(current, start, time, lowerMargin, wrapperSize, deceleration) {
        var distance = current - start,
            speed = Math.abs(distance) / time,
            destination,
            duration;

        deceleration = deceleration === undefined ? 0.0006 : deceleration;

        destination = current + ( speed * speed ) / ( 2 * deceleration ) * ( distance < 0 ? -1 : 1 );
        duration = speed / deceleration;

        if (destination < lowerMargin) {
          destination = wrapperSize ? lowerMargin - ( wrapperSize / 2.5 * ( speed / 8 ) ) : lowerMargin;
          distance = Math.abs(destination - current);
          duration = distance / speed;
        } else if (destination > 0) {
          destination = wrapperSize ? wrapperSize / 2.5 * ( speed / 8 ) : 0;
          distance = Math.abs(current) + destination;
          duration = distance / speed;
        }

        return {
          destination: Math.round(destination),
          duration: duration
        };
      };

      var _transform = _prefixStyle('transform');

      me.extend(me, {
        hasTransform: _transform !== false,
        hasPerspective: _prefixStyle('perspective') in _elementStyle,
        hasTouch: 'ontouchstart' in window,
        hasPointer: window.PointerEvent || window.MSPointerEvent, // IE10 is prefixed
        hasTransition: _prefixStyle('transition') in _elementStyle
      });

      // This should find all Android browsers lower than build 535.19 (both stock browser and webview)
      me.isBadAndroid = /Android /.test(window.navigator.appVersion) && !(/Chrome\/\d/.test(window.navigator.appVersion));

      me.extend(me.style = {}, {
        transform: _transform,
        transitionTimingFunction: _prefixStyle('transitionTimingFunction'),
        transitionDuration: _prefixStyle('transitionDuration'),
        transitionDelay: _prefixStyle('transitionDelay'),
        transformOrigin: _prefixStyle('transformOrigin')
      });

      me.hasClass = function(e, c) {
        var re = new RegExp("(^|\\s)" + c + "(\\s|$)");
        return re.test(e.className);
      };

      me.addClass = function(e, c) {
        if (me.hasClass(e, c)) {
          return;
        }

        var newclass = e.className.split(' ');
        newclass.push(c);
        e.className = newclass.join(' ');
      };

      me.removeClass = function(e, c) {
        if (!me.hasClass(e, c)) {
          return;
        }

        var re = new RegExp("(^|\\s)" + c + "(\\s|$)", 'g');
        e.className = e.className.replace(re, ' ');
      };

      me.offset = function(el) {
        var left = -el.offsetLeft,
            top = -el.offsetTop;

        // jshint -W084
        while (el = el.offsetParent) {
          left -= el.offsetLeft;
          top -= el.offsetTop;
        }
        // jshint +W084

        return {
          left: left,
          top: top
        };
      };

      me.preventDefaultException = function(el, exceptions) {
        for (var i in exceptions) {
          if (exceptions[i].test(el[i])) {
            return true;
          }
        }

        return false;
      };

      me.extend(me.eventType = {}, {
        touchstart: 1,
        touchmove: 1,
        touchend: 1,

        mousedown: 2,
        mousemove: 2,
        mouseup: 2,

        pointerdown: 3,
        pointermove: 3,
        pointerup: 3,

        MSPointerDown: 3,
        MSPointerMove: 3,
        MSPointerUp: 3
      });

      me.extend(me.ease = {}, {
        quadratic: {
          style: 'cubic-bezier(0.25, 0.46, 0.45, 0.94)',
          fn: function(k) {
            return k * ( 2 - k );
          }
        },
        circular: {
          style: 'cubic-bezier(0.1, 0.57, 0.1, 1)',	// Not properly "circular" but this looks better, it should be (0.075, 0.82, 0.165, 1)
          fn: function(k) {
            return Math.sqrt(1 - ( --k * k ));
          }
        },
        back: {
          style: 'cubic-bezier(0.175, 0.885, 0.32, 1.275)',
          fn: function(k) {
            var b = 4;
            return ( k = k - 1 ) * k * ( ( b + 1 ) * k + b ) + 1;
          }
        },
        bounce: {
          style: '',
          fn: function(k) {
            if (( k /= 1 ) < ( 1 / 2.75 )) {
              return 7.5625 * k * k;
            } else if (k < ( 2 / 2.75 )) {
              return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75;
            } else if (k < ( 2.5 / 2.75 )) {
              return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375;
            } else {
              return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375;
            }
          }
        },
        elastic: {
          style: '',
          fn: function(k) {
            var f = 0.22,
                e = 0.4;

            if (k === 0) {
              return 0;
            }
            if (k == 1) {
              return 1;
            }

            return ( e * Math.pow(2, -10 * k) * Math.sin(( k - f / 4 ) * ( 2 * Math.PI ) / f) + 1 );
          }
        }
      });

      me.tap = function(e, eventName) {
        var ev = document.createEvent('Event');
        ev.initEvent(eventName, true, true);
        ev.pageX = e.pageX;
        ev.pageY = e.pageY;
        e.target.dispatchEvent(ev);
      };

      me.click = function(e) {
        var target = e.target,
            ev;

        if (!(/(SELECT|INPUT|TEXTAREA)/i).test(target.tagName)) {
          ev = document.createEvent('MouseEvents');
          ev.initMouseEvent('click', true, true, e.view, 1,
              target.screenX, target.screenY, target.clientX, target.clientY,
              e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,
              0, null);

          ev._constructed = true;
          target.dispatchEvent(ev);
        }
      };

      return me;
    })();

    function IScroll(el, options) {
      this.wrapper = typeof el == 'string' ? document.querySelector(el) : el;
      this.scroller = this.wrapper.children[0];
      this.scrollerStyle = this.scroller.style;		// cache style for better performance

      this.options = {

// INSERT POINT: OPTIONS

        startX: 0,
        startY: 0,
        scrollY: true,
        directionLockThreshold: 5,
        momentum: true,

        bounce: true,
        bounceTime: 600,
        bounceEasing: '',

        preventDefault: true,
        preventDefaultException: { tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT)$/ },

        HWCompositing: true,
        useTransition: true,
        useTransform: true
      };

      for (var i in options) {
        this.options[i] = options[i];
      }

      // Normalize options
      this.translateZ = this.options.HWCompositing && utils.hasPerspective ? ' translateZ(0)' : '';

      this.options.useTransition = utils.hasTransition && this.options.useTransition;
      this.options.useTransform = utils.hasTransform && this.options.useTransform;

      this.options.eventPassthrough = this.options.eventPassthrough === true ? 'vertical' : this.options.eventPassthrough;
      this.options.preventDefault = !this.options.eventPassthrough && this.options.preventDefault;

      // If you want eventPassthrough I have to lock one of the axes
      this.options.scrollY = this.options.eventPassthrough == 'vertical' ? false : this.options.scrollY;
      this.options.scrollX = this.options.eventPassthrough == 'horizontal' ? false : this.options.scrollX;

      // With eventPassthrough we also need lockDirection mechanism
      this.options.freeScroll = this.options.freeScroll && !this.options.eventPassthrough;
      this.options.directionLockThreshold = this.options.eventPassthrough ? 0 : this.options.directionLockThreshold;

      this.options.bounceEasing = typeof this.options.bounceEasing == 'string' ? utils.ease[this.options.bounceEasing] || utils.ease.circular : this.options.bounceEasing;

      this.options.resizePolling = this.options.resizePolling === undefined ? 60 : this.options.resizePolling;

      if (this.options.tap === true) {
        this.options.tap = 'tap';
      }

// INSERT POINT: NORMALIZATION

      // Some defaults
      this.x = 0;
      this.y = 0;
      this.directionX = 0;
      this.directionY = 0;
      this._events = {};

// INSERT POINT: DEFAULTS

      this._init();
      this.refresh();

      this.scrollTo(this.options.startX, this.options.startY);
      this.enable();
    }

    IScroll.prototype = {
      version: '5.1.3',

      _init: function() {
        this._initEvents();

// INSERT POINT: _init

      },

      destroy: function() {
        this._initEvents(true);

        this._execEvent('destroy');
      },

      _transitionEnd: function(e) {
        if (e.target != this.scroller || !this.isInTransition) {
          return;
        }

        this._transitionTime();
        if (!this.resetPosition(this.options.bounceTime)) {
          this.isInTransition = false;
          this._execEvent('scrollEnd');
        }
      },

      _start: function(e) {
        // React to left mouse button only
        if (utils.eventType[e.type] != 1) {
          if (e.button !== 0) {
            return;
          }
        }

        if (!this.enabled || (this.initiated && utils.eventType[e.type] !== this.initiated)) {
          return;
        }

        if (this.options.preventDefault && !utils.isBadAndroid && !utils.preventDefaultException(e.target, this.options.preventDefaultException)) {
          e.preventDefault();
        }

        var point = e.touches ? e.touches[0] : e,
            pos;

        this.initiated = utils.eventType[e.type];
        this.moved = false;
        this.distX = 0;
        this.distY = 0;
        this.directionX = 0;
        this.directionY = 0;
        this.directionLocked = 0;

        this._transitionTime();

        this.startTime = utils.getTime();

        if (this.options.useTransition && this.isInTransition) {
          this.isInTransition = false;
          pos = this.getComputedPosition();
          this._translate(Math.round(pos.x), Math.round(pos.y));
          this._execEvent('scrollEnd');
        } else if (!this.options.useTransition && this.isAnimating) {
          this.isAnimating = false;
          this._execEvent('scrollEnd');
        }

        this.startX = this.x;
        this.startY = this.y;
        this.absStartX = this.x;
        this.absStartY = this.y;
        this.pointX = point.pageX;
        this.pointY = point.pageY;

        this._execEvent('beforeScrollStart');
      },

      _move: function(e) {
        if (!this.enabled || utils.eventType[e.type] !== this.initiated) {
          return;
        }

        if (this.options.preventDefault) {	// increases performance on Android? TODO: check!
          e.preventDefault();
        }

        var point = e.touches ? e.touches[0] : e,
            deltaX = point.pageX - this.pointX,
            deltaY = point.pageY - this.pointY,
            timestamp = utils.getTime(),
            newX, newY,
            absDistX, absDistY;

        this.pointX = point.pageX;
        this.pointY = point.pageY;

        this.distX += deltaX;
        this.distY += deltaY;
        absDistX = Math.abs(this.distX);
        absDistY = Math.abs(this.distY);

        // We need to move at least 10 pixels for the scrolling to initiate
        if (timestamp - this.endTime > 300 && (absDistX < 10 && absDistY < 10)) {
          return;
        }

        // If you are scrolling in one direction lock the other
        if (!this.directionLocked && !this.options.freeScroll) {
          if (absDistX > absDistY + this.options.directionLockThreshold) {
            this.directionLocked = 'h';		// lock horizontally
          } else if (absDistY >= absDistX + this.options.directionLockThreshold) {
            this.directionLocked = 'v';		// lock vertically
          } else {
            this.directionLocked = 'n';		// no lock
          }
        }

        if (this.directionLocked == 'h') {
          if (this.options.eventPassthrough == 'vertical') {
            e.preventDefault();
          } else if (this.options.eventPassthrough == 'horizontal') {
            this.initiated = false;
            return;
          }

          deltaY = 0;
        } else if (this.directionLocked == 'v') {
          if (this.options.eventPassthrough == 'horizontal') {
            e.preventDefault();
          } else if (this.options.eventPassthrough == 'vertical') {
            this.initiated = false;
            return;
          }

          deltaX = 0;
        }

        deltaX = this.hasHorizontalScroll ? deltaX : 0;
        deltaY = this.hasVerticalScroll ? deltaY : 0;

        newX = this.x + deltaX;
        newY = this.y + deltaY;

        // Slow down if outside of the boundaries
        if (newX > 0 || newX < this.maxScrollX) {
          newX = this.options.bounce ? this.x + deltaX / 3 : newX > 0 ? 0 : this.maxScrollX;
        }
        if (newY > 0 || newY < this.maxScrollY) {
          newY = this.options.bounce ? this.y + deltaY / 3 : newY > 0 ? 0 : this.maxScrollY;
        }

        this.directionX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0;
        this.directionY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0;

        if (!this.moved) {
          this._execEvent('scrollStart');
        }

        this.moved = true;

        this._translate(newX, newY);

        /* REPLACE START: _move */

        if (timestamp - this.startTime > 300) {
          this.startTime = timestamp;
          this.startX = this.x;
          this.startY = this.y;
        }

        /* REPLACE END: _move */

      },

      _end: function(e) {
        if (!this.enabled || utils.eventType[e.type] !== this.initiated) {
          return;
        }

        if (this.options.preventDefault && !utils.preventDefaultException(e.target, this.options.preventDefaultException)) {
          e.preventDefault();
        }

        var point = e.changedTouches ? e.changedTouches[0] : e,
            momentumX,
            momentumY,
            duration = utils.getTime() - this.startTime,
            newX = Math.round(this.x),
            newY = Math.round(this.y),
            distanceX = Math.abs(newX - this.startX),
            distanceY = Math.abs(newY - this.startY),
            time = 0,
            easing = '';

        this.isInTransition = 0;
        this.initiated = 0;
        this.endTime = utils.getTime();

        // reset if we are outside of the boundaries
        if (this.resetPosition(this.options.bounceTime)) {
          return;
        }

        this.scrollTo(newX, newY);	// ensures that the last position is rounded

        // we scrolled less than 10 pixels
        if (!this.moved) {
          if (this.options.tap) {
            utils.tap(e, this.options.tap);
          }

          if (this.options.click) {
            utils.click(e);
          }

          this._execEvent('scrollCancel');
          return;
        }

        if (this._events.flick && duration < 200 && distanceX < 100 && distanceY < 100) {
          this._execEvent('flick');
          return;
        }

        // start momentum animation if needed
        if (this.options.momentum && duration < 300) {
          momentumX = this.hasHorizontalScroll ? utils.momentum(this.x, this.startX, duration, this.maxScrollX, this.options.bounce ? this.wrapperWidth : 0, this.options.deceleration) : { destination: newX, duration: 0 };
          momentumY = this.hasVerticalScroll ? utils.momentum(this.y, this.startY, duration, this.maxScrollY, this.options.bounce ? this.wrapperHeight : 0, this.options.deceleration) : { destination: newY, duration: 0 };
          newX = momentumX.destination;
          newY = momentumY.destination;
          time = Math.max(momentumX.duration, momentumY.duration);
          this.isInTransition = 1;
        }

// INSERT POINT: _end

        if (newX != this.x || newY != this.y) {
          // change easing function when scroller goes out of the boundaries
          if (newX > 0 || newX < this.maxScrollX || newY > 0 || newY < this.maxScrollY) {
            easing = utils.ease.quadratic;
          }

          this.scrollTo(newX, newY, time, easing);
          return;
        }

        this._execEvent('scrollEnd');
      },

      _resize: function() {
        var that = this;

        clearTimeout(this.resizeTimeout);

        this.resizeTimeout = setTimeout(function() {
          that.refresh();
        }, this.options.resizePolling);
      },

      resetPosition: function(time) {
        var x = this.x,
            y = this.y;

        time = time || 0;

        if (!this.hasHorizontalScroll || this.x > 0) {
          x = 0;
        } else if (this.x < this.maxScrollX) {
          x = this.maxScrollX;
        }

        if (!this.hasVerticalScroll || this.y > 0) {
          y = 0;
        } else if (this.y < this.maxScrollY) {
          y = this.maxScrollY;
        }

        if (x == this.x && y == this.y) {
          return false;
        }

        this.scrollTo(x, y, time, this.options.bounceEasing);

        return true;
      },

      disable: function() {
        this.enabled = false;
      },

      enable: function() {
        this.enabled = true;
      },

      refresh: function() {
        var rf = this.wrapper.offsetHeight;		// Force reflow

        this.wrapperWidth = this.wrapper.clientWidth;
        this.wrapperHeight = this.wrapper.clientHeight;

        /* REPLACE START: refresh */

        this.scrollerWidth = this.scroller.offsetWidth;
        this.scrollerHeight = this.scroller.offsetHeight;

        this.maxScrollX = this.wrapperWidth - this.scrollerWidth;
        this.maxScrollY = this.wrapperHeight - this.scrollerHeight;

        /* REPLACE END: refresh */

        this.hasHorizontalScroll = this.options.scrollX && this.maxScrollX < 0;
        this.hasVerticalScroll = this.options.scrollY && this.maxScrollY < 0;

        if (!this.hasHorizontalScroll) {
          this.maxScrollX = 0;
          this.scrollerWidth = this.wrapperWidth;
        }

        if (!this.hasVerticalScroll) {
          this.maxScrollY = 0;
          this.scrollerHeight = this.wrapperHeight;
        }

        this.endTime = 0;
        this.directionX = 0;
        this.directionY = 0;

        this.wrapperOffset = utils.offset(this.wrapper);

        this._execEvent('refresh');

        this.resetPosition();

// INSERT POINT: _refresh

      },

      on: function(type, fn) {
        if (!this._events[type]) {
          this._events[type] = [];
        }

        this._events[type].push(fn);
      },

      off: function(type, fn) {
        if (!this._events[type]) {
          return;
        }

        var index = this._events[type].indexOf(fn);

        if (index > -1) {
          this._events[type].splice(index, 1);
        }
      },

      _execEvent: function(type) {
        if (!this._events[type]) {
          return;
        }

        var i = 0,
            l = this._events[type].length;

        if (!l) {
          return;
        }

        for (; i < l; i++) {
          this._events[type][i].apply(this, [].slice.call(arguments, 1));
        }
      },

      scrollBy: function(x, y, time, easing) {
        x = this.x + x;
        y = this.y + y;
        time = time || 0;

        this.scrollTo(x, y, time, easing);
      },

      scrollTo: function(x, y, time, easing) {
        easing = easing || utils.ease.circular;

        this.isInTransition = this.options.useTransition && time > 0;

        if (!time || (this.options.useTransition && easing.style)) {
          this._transitionTimingFunction(easing.style);
          this._transitionTime(time);
          this._translate(x, y);
        } else {
          this._animate(x, y, time, easing.fn);
        }
      },

      scrollToElement: function(el, time, offsetX, offsetY, easing) {
        el = el.nodeType ? el : this.scroller.querySelector(el);

        if (!el) {
          return;
        }

        var pos = utils.offset(el);

        pos.left -= this.wrapperOffset.left;
        pos.top -= this.wrapperOffset.top;

        // if offsetX/Y are true we center the element to the screen
        if (offsetX === true) {
          offsetX = Math.round(el.offsetWidth / 2 - this.wrapper.offsetWidth / 2);
        }
        if (offsetY === true) {
          offsetY = Math.round(el.offsetHeight / 2 - this.wrapper.offsetHeight / 2);
        }

        pos.left -= offsetX || 0;
        pos.top -= offsetY || 0;

        pos.left = pos.left > 0 ? 0 : pos.left < this.maxScrollX ? this.maxScrollX : pos.left;
        pos.top = pos.top > 0 ? 0 : pos.top < this.maxScrollY ? this.maxScrollY : pos.top;

        time = time === undefined || time === null || time === 'auto' ? Math.max(Math.abs(this.x - pos.left), Math.abs(this.y - pos.top)) : time;

        this.scrollTo(pos.left, pos.top, time, easing);
      },

      _transitionTime: function(time) {
        time = time || 0;

        this.scrollerStyle[utils.style.transitionDuration] = time + 'ms';

        if (!time && utils.isBadAndroid) {
          this.scrollerStyle[utils.style.transitionDuration] = '0.001s';
        }

// INSERT POINT: _transitionTime

      },

      _transitionTimingFunction: function(easing) {
        this.scrollerStyle[utils.style.transitionTimingFunction] = easing;

// INSERT POINT: _transitionTimingFunction

      },

      _translate: function(x, y) {
        if (this.options.useTransform) {

          /* REPLACE START: _translate */

          this.scrollerStyle[utils.style.transform] = 'translate(' + x + 'px,' + y + 'px)' + this.translateZ;

          /* REPLACE END: _translate */

        } else {
          x = Math.round(x);
          y = Math.round(y);
          this.scrollerStyle.left = x + 'px';
          this.scrollerStyle.top = y + 'px';
        }

        this.x = x;
        this.y = y;

// INSERT POINT: _translate

      },

      _initEvents: function(remove) {
        var eventType = remove ? utils.removeEvent : utils.addEvent,
            target = this.options.bindToWrapper ? this.wrapper : window;

        eventType(window, 'orientationchange', this);
        eventType(window, 'resize', this);

        if (this.options.click) {
          eventType(this.wrapper, 'click', this, true);
        }

        if (!this.options.disableMouse) {
          eventType(this.wrapper, 'mousedown', this);
          eventType(target, 'mousemove', this);
          eventType(target, 'mousecancel', this);
          eventType(target, 'mouseup', this);
        }

        if (utils.hasPointer && !this.options.disablePointer) {
          eventType(this.wrapper, utils.prefixPointerEvent('pointerdown'), this);
          eventType(target, utils.prefixPointerEvent('pointermove'), this);
          eventType(target, utils.prefixPointerEvent('pointercancel'), this);
          eventType(target, utils.prefixPointerEvent('pointerup'), this);
        }

        if (utils.hasTouch && !this.options.disableTouch) {
          eventType(this.wrapper, 'touchstart', this);
          eventType(target, 'touchmove', this);
          eventType(target, 'touchcancel', this);
          eventType(target, 'touchend', this);
        }

        eventType(this.scroller, 'transitionend', this);
        eventType(this.scroller, 'webkitTransitionEnd', this);
        eventType(this.scroller, 'oTransitionEnd', this);
        eventType(this.scroller, 'MSTransitionEnd', this);
      },

      getComputedPosition: function() {
        var matrix = window.getComputedStyle(this.scroller, null),
            x, y;

        if (this.options.useTransform) {
          matrix = matrix[utils.style.transform].split(')')[0].split(', ');
          x = +(matrix[12] || matrix[4]);
          y = +(matrix[13] || matrix[5]);
        } else {
          x = +matrix.left.replace(/[^-\d.]/g, '');
          y = +matrix.top.replace(/[^-\d.]/g, '');
        }

        return { x: x, y: y };
      },

      _animate: function(destX, destY, duration, easingFn) {
        var that = this,
            startX = this.x,
            startY = this.y,
            startTime = utils.getTime(),
            destTime = startTime + duration;

        function step() {
          var now = utils.getTime(),
              newX, newY,
              easing;

          if (now >= destTime) {
            that.isAnimating = false;
            that._translate(destX, destY);

            if (!that.resetPosition(that.options.bounceTime)) {
              that._execEvent('scrollEnd');
            }

            return;
          }

          now = ( now - startTime ) / duration;
          easing = easingFn(now);
          newX = ( destX - startX ) * easing + startX;
          newY = ( destY - startY ) * easing + startY;
          that._translate(newX, newY);

          if (that.isAnimating) {
            rAF(step);
          }
        }

        this.isAnimating = true;
        step();
      },
      handleEvent: function(e) {
        switch (e.type) {
          case 'touchstart':
          case 'pointerdown':
          case 'MSPointerDown':
          case 'mousedown':
            this._start(e);
            break;
          case 'touchmove':
          case 'pointermove':
          case 'MSPointerMove':
          case 'mousemove':
            this._move(e);
            break;
          case 'touchend':
          case 'pointerup':
          case 'MSPointerUp':
          case 'mouseup':
          case 'touchcancel':
          case 'pointercancel':
          case 'MSPointerCancel':
          case 'mousecancel':
            this._end(e);
            break;
          case 'orientationchange':
          case 'resize':
            this._resize();
            break;
          case 'transitionend':
          case 'webkitTransitionEnd':
          case 'oTransitionEnd':
          case 'MSTransitionEnd':
            this._transitionEnd(e);
            break;
          case 'wheel':
          case 'DOMMouseScroll':
          case 'mousewheel':
            this._wheel(e);
            break;
          case 'keydown':
            this._key(e);
            break;
          case 'click':
            if (!e._constructed) {
              e.preventDefault();
              e.stopPropagation();
            }
            break;
        }
      }
    };
    IScroll.utils = utils;

    if (typeof module != 'undefined' && module.exports) {
      module.exports = IScroll;
    } else {
      window.IScroll = IScroll;
    }

  })(window, document, Math);

  /* jshint unused: true */
  /* jshint +W101, +W116, +W109 */
});
